Feed-forward Torque Control of Interior Permanent Magnet Brushless AC Drive for Traction Applications

K. D. Hoang, J. Wang, M. Cyriacks, A. Melkonyan, K. Kriegel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

27 Citations (Scopus)

Abstract

This paper presents a feed-forward torque control (FTC) technique for interior permanent magnet (IPM) brushless AC (BLAC) drives in traction applications. It is shown that by adopting the Newton-Raphson iterative method for solving the proposed high-order nonlinear relationship between the torque demand, flux-linkage and desirable dq-axis currents, FTC with due account of nonlinear machine parameters can be achieved for IPM BLAC drives. It is also proven that the comparison between the reference voltage magnitudes under maximum torque per ampere (MTPA) and field-weakening (FW) operations together with online base speed determination can be utilized for FW operation activation to achieve full exploitation of the available DC-link voltage during the transition between the constant torque and FW operation regions. Since both the dq-axis current references and the base speed for FW operation activation are computed online, the proposed FTC technique provides flexibility for online parameter update or estimation and is able to cope with wide DC-link voltage variation. The proposed FTC strategy is experimentally validated by measurements on a 10kW wide constant power speed range (CPSR) IPM BLAC machine drive.

Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
PublisherIEEE
Pages152-159
Number of pages8
ISBN (Electronic)9781467349741, 9781467349734, 9781467349727
ISBN (Print)9781467349758
DOIs
Publication statusPublished - 15 Jul 2013
Externally publishedYes
Event2013 IEEE International Electric Machines and Drives Conference - Chicago, United States
Duration: 12 May 201315 May 2013

Conference

Conference2013 IEEE International Electric Machines and Drives Conference
Abbreviated titleIEMDC 2013
Country/TerritoryUnited States
CityChicago
Period12/05/1315/05/13

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